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公开(公告)号：US20240235328A1
公开(公告)日：2024-07-11
申请号：US18151504
申请日：2023-01-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Farzad Samie , Peng Peng , Xiaofeng Yang , Alireza Fatemi
Abstract: Embodiments include a system for cooling an electric motor and a vehicle including the same. The system for cooling the electric motor includes a pump configured to circulate a conductive cooling fluid through one or more portions of the electric motor and a heat exchanger configured to receive and cool the conductive cooling fluid received from the electric motor.
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12.发明公开公开(公告)号：US20240162559A1
公开(公告)日：2024-05-16
申请号：US17986015
申请日：2022-11-14
Applicant: GM Global Technology Operations LLC
Inventor： Jian Gao , Xiaofeng Yang , Ronald O. Grover, JR. , Wei Zeng
IPC: H01M50/383 , B60L50/64 , H01M50/204 , H01M50/358
CPC classification number: H01M50/383 , B60L50/64 , H01M50/204 , H01M50/358 , B05B1/046 , H01M2200/00 , H01M2220/20
Abstract: A rechargeable energy storage system (RESS) including a thermal runaway propagation (TRP) mitigation system includes a housing including at least one outlet, a plurality of energy storage cells arranged in the housing, and at least one duct extending along the plurality of energy storage cells. The at least one duct is fluidically connected to the at least one outlet. A gas delivery system is arranged at the housing and includes a gas storage canister operable to deliver an amount of gas into the housing to purge combustible gases through the at least one outlet.
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公开(公告)号：US20220294293A1
公开(公告)日：2022-09-15
申请号：US17201251
申请日：2021-03-15
Applicant: GM Global Technology Operations LLC
Inventor： Xiaofeng Yang , Thomas W. Nehl
Abstract: A rotor core for an electric motor includes a core stack including a plurality of identical lamination plates, each lamination plate including a plurality of magnet slots formed therein, the magnet slots of each of the lamination plates axially aligned and adapted to support a plurality of permanent magnets therein, and a plurality of heat conductive inserts extending axially through the core stack and adapted to conduct heat from inner portions of the core stack outward toward distal ends of the core stack.
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公开(公告)号：US11355980B2
公开(公告)日：2022-06-07
申请号：US16860692
申请日：2020-04-28
Applicant: GM Global Technology Operations LLC
Inventor： Xiaofeng Yang , Scott E. Parrish
IPC: H02K1/32
Abstract: An electric motor comprises a housing, a stator mounted stationary within the housing and having end turn windings, a rotatable central shaft, a rotor mounted onto the central shaft for rotation within the stator, the stator, central shaft and rotor all positioned co-axially within the housing, a rotor end ring mounted onto the central shaft adjacent an axial end of the rotor, the rotor end ring including a body, a plurality of outlets adapted to allow coolant to flow from a back side to a face of the body, and a recess formed within the face of the body, wherein coolant flowing through the outlets flows across the recess toward an outer circumference of the body, and the outer circumference of the body is configured to prevent coolant from flowing into a circumferential air gap between the stator and the rotor.
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公开(公告)号：US11309766B2
公开(公告)日：2022-04-19
申请号：US16736185
申请日：2020-01-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Xiaofeng Yang , Wei Zeng , Lei Hao , Srihari K. Gangaraj
Abstract: A permanent magnet electric motor includes a shaft extending along a longitudinal axis and a rotor mounted on the shaft. The rotor is rotatable concomitantly with the shaft about the longitudinal axis, the rotor defines an innermost rotor edge. The innermost rotor edge is sized to receive the shaft. The permanent magnet electric motor further includes a stator. The shaft defines a jacket configured to receive a coolant. The jacket is disposed about the longitudinal axis. The jacket is elongated in a first direction. The first direction is parallel to the longitudinal axis. The rotor defines a plurality of longitudinal channels. Each of the plurality of longitudinal channel is elongated along the first direction, and each of the plurality of longitudinal channels is in fluid communication with the jacket to allow fluid flow between the jacket and the plurality of the longitudinal channels.
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Patent Agency Ranking
公开(公告)号：US20210336510A1
公开(公告)日：2021-10-28
申请号：US16860695
申请日：2020-04-28
Applicant: GM Global Technology Operations LLC
Inventor： Xiaofeng Yang , Wei Zeng , Lei Hao
Abstract: An electric motor includes a housing, a stator having end turn windings, a rotatable central shaft, a rotor mounted onto the central shaft, and a rotor end ring mounted onto the central shaft adjacent the rotor, the rotor end ring including an annular disk shaped body having a circumferential outer diameter and a circumferential inner diameter and being formed from a thermally conductive material, a recess formed within a face of the body, an oil jacket formed within a back side of the body, the oil jacket comprising an annular channel having a circumferential outer wall and a circumferential inner wall, two inlets, each inlet extending radially between the inner diameter of the body and the inner wall of the oil jacket, a plurality of outlets, each outlet comprising a circumferential slot, the plurality of outlets equidistantly spaced around the face adjacent the circumferential inner wall of the oil jacket.
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公开(公告)号：US20210336500A1
公开(公告)日：2021-10-28
申请号：US16860692
申请日：2020-04-28
Applicant: GM Global Technology Operations LLC
Inventor： Xiaofeng Yang , Scott E. Parrish
IPC: H02K1/32
Abstract: An electric motor comprises a housing, a stator mounted stationary within the housing and having end turn windings, a rotatable central shaft, a rotor mounted onto the central shaft for rotation within the stator, the stator, central shaft and rotor all positioned co-axially within the housing, a rotor end ring mounted onto the central shaft adjacent an axial end of the rotor, the rotor end ring including a body, a plurality of outlets adapted to allow coolant to flow from a back side to a face of the body, and a recess formed within the face of the body, wherein coolant flowing through the outlets flows across the recess toward an outer circumference of the body, and the outer circumference of the body is configured to prevent coolant from flowing into a circumferential air gap between the stator and the rotor.
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公开(公告)号：US20240380279A1
公开(公告)日：2024-11-14
申请号：US18314927
申请日：2023-05-10
Applicant: GM Global Technology Operations LLC
Inventor： Xiaofeng Yang , Peng Peng , Farzad Samie
Abstract: An electric propulsion motor system includes a rotary electric propulsion motor that has a stator and a rotor. An air gap is present between the stator and rotor. A fluid circulation system provides pressurized liquid and gas, which is directed through fluid passages in the stator and/or rotor and into the air gap to establish a mixture of pressurized liquid and pressurized gas therein. The pressurized gas dilutes the mixture and pushes the pressurized liquid and pressurized gas against the stator and rotor, forcing it to exit the air gap at the opposite ends of the motor leaving the air gap free of accumulated liquid.
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公开(公告)号：US11770039B2
公开(公告)日：2023-09-26
申请号：US17201251
申请日：2021-03-15
Applicant: GM Global Technology Operations LLC
Inventor： Xiaofeng Yang , Thomas W. Nehl
Abstract: A rotor core for an electric motor includes a core stack including a plurality of identical lamination plates, each lamination plate including a plurality of magnet slots formed therein, the magnet slots of each of the lamination plates axially aligned and adapted to support a plurality of permanent magnets therein, and a plurality of heat conductive inserts extending axially through the core stack and adapted to conduct heat from inner portions of the core stack outward toward distal ends of the core stack.
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公开(公告)号：US11616270B2
公开(公告)日：2023-03-28
申请号：US17078466
申请日：2020-10-23
Applicant: GM Global Technology Operations LLC
Inventor： Xiaofeng Yang
IPC: H01M50/383 , H01M10/656 , H01M50/20
Abstract: A battery includes a plurality of battery cells, each battery cell including a core, a source of thermal control fluid in fluid communication with the core, and a first pressure sensitive valve positioned between the core and the source of thermal control fluid, the first pressure sensitive valve adapted to open when pressure within the core exceeds a first pre-determined value.
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